Every time we switch platforms, we start from zero. Our Uber rating doesn't follow us to Lyft. Our eBay reputation vanishes on Etsy. Our track record on one freelancing platform means nothing on another. We've normalized this. But it's worth pausing to notice how strange it is. We spend years building reputation somewhere. The moment we leave, those years never happened.The problem runs deeper than platform lock-in. Consider a professional with a master's degree and ten years of experience in...